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Diffstat (limited to 'libdimension/dimension/canvas.h')
| -rw-r--r-- | libdimension/dimension/canvas.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/libdimension/dimension/canvas.h b/libdimension/dimension/canvas.h new file mode 100644 index 0000000..251c64a --- /dev/null +++ b/libdimension/dimension/canvas.h @@ -0,0 +1,50 @@ +/************************************************************************* + * Copyright (C) 2008 Tavian Barnes <tavianator@gmail.com> * + * * + * This file is part of Dimension. * + * * + * Dimension is free software; you can redistribute it and/or modify it * + * under the terms of the GNU Lesser General Public License as published * + * by the Free Software Foundation; either version 3 of the License, or * + * (at your option) any later version. * + * * + * Dimension is distributed in the hope that it will be useful, but * + * WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * + * Lesser General Public License for more details. * + * * + * You should have received a copy of the GNU Lesser General Public * + * License along with this program. If not, see * + * <http://www.gnu.org/licenses/>. * + *************************************************************************/ + +/* + * A canvas which is rendered to. + */ + +#ifndef DIMENSION_CANVAS_H +#define DIMENSION_CANVAS_H + +/* 48-bit sRGB color for pixels. */ +typedef struct { + uint16_t r, g, b; + uint16_t a, t; +} dmnsn_pixel; + +dmnsn_pixel dmnsn_pixel_from_color(dmnsn_color color); +dmnsn_color dmnsn_color_from_pixel(dmnsn_pixel pixel); + +typedef struct { + unsigned int x, y; + + /* + * Stored in first-quadrant representation (origin is bottom-left). The pixel + * at (a,b) is accessible as pixels[b*x + a]. + */ + dmnsn_pixel *pixels; +} dmnsn_canvas; + +dmnsn_canvas *dmnsn_new_canvas(unsigned int x, unsigned int y); +void dmnsn_delete_canvas(dmnsn_canvas *canvas); + +#endif /* DIMENSION_CANVAS_H */ |